From YouTube, produced by Max-Planck Institute for Gravitational Physics

Einstein believed it would be impossible to measure gravitational waves directly, but we are now reaching the point where we do have technologies that can actually measure it. This video describes new discoveries in the science of gravitational wave...s. (3:38)[more]

Concepts: The Celestial Sphere | The Horizon and Zenith relationship | Azimuth and Altitude relationship
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Part of a Blended Classroom taught at Millard West High School.
Produced for Millard Public Schools by Justin Higgins.
Less...on Plans and how the course is structured:
http://sciencewithhiggins.com/classes/astro/[more]

Concepts: Solar Radiation, Intensity, Inverse Square Law
--------------
Part of a Blended Classroom taught at Millard West High School.
Produced for Millard Public Schools by Justin Higgins.
Lesson Plans and how the course is structured:
htt...p://sciencewithhiggins.com/classes/astro/[more]

From YouTube, produced by Max-Planck Institute for Gravitational Physics

In 1907 a young Albert Einstein was looking for a way to extend his special theory of relativity to include acceleration. It took him eight years to come up with general theory of relativity. This excellent video introduces the student to Einstein's... theory in a very accessible and visual way. (03:12)[more]

From YouTube, produced by Max-Planck Institute for Gravitational Physics

Together, space- and ground-based gravitational wave detectors will open a new field in astronomy, gravitational wave astronomy. This video describes techniques used to measure gravitational forcers. (4:02)

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